Plasma pentraxin 3 is associated with cardiovascular disease in hemodialysis patients

Yan Xu, Xiaoqiang Ding, Jianzhou Zou, Zhonghua Liu, Suhua Jiang, Shaowei Xu, Bo Shen, Yuemei Chen, Yisheng Shan, Xuesen Cao
Renal Failure 2011, 33 (10): 998-1004
This cross-sectional study evaluates the associations of Pentraxin 3 (PTX3) and cardiovascular disease (CVD) in hemodialysis (HD) patients. Plasma was obtained from 98 maintenance HD patients before and after a session of HD and 50 age-matched healthy subjects. We measured plasma PTX3 levels by enzyme-linked immunosorbent assay. Our results showed that plasma PTX3 levels were significantly higher in HD patients compared with controls (1.87 vs. 1.11 ng/mL, p < 0.001), and increased acutely after a single HD session (post-HD 2.18 ng/mL vs. pre-HD 1.87 ng/mL, p < 0.001). Patients with CVD had higher plasma PTX3 levels than those without CVD (2.18 vs. 1.76 ng/mL, p < 0.05). Plasma PTX3 levels correlated positively with cardiac troponin T (ρ = 0.287, p = 0.007) and carotid artery intima-media thickness (ρ = 0.294, p = 0.043). High plasma PTX3 (>1.87 ng/mL) level was positively and independently associated with CVD (OR = 3.15, p = 0.024). Receiver operator characteristics analysis showed the correlation between PTX3 and CVD more closely than high sensitivity C-reactive protein (hs-CRP) in patients whose hs-CRP were higher than 3 mg/L. The area under the curve for PTX3 and hs-CRP was 0.655 (p = 0.047) and 0.562 (p = 0.458), respectively. Moreover, plasma PTX3 levels correlated negatively with body mass index, hemoglobin, pre-albumin, total cholesterol, triglyceride, and low-density lipoprotein. These data support the main conclusions: PTX3 levels are markedly elevated in HD patients; HD procedure itself induces PTX3 elevation; plasma PTX3 is associated with CVD in maintenance HD patients.

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